So yesterday I finally tried to install the Windows 10 upgrade that would never work before, and after jumping through a bunch of hoops it finally looked like it ran. Said to reboot, and we'll be good to go.
Um, no. Wouldn't start Windows, repeatedly. After a couple of efforts to get something going, Windows 10 installer said it couldn't install Windows 10, but it had given up and put my computer back "just the way it was." And indeed, Win 7 came back and it's been running OK since yesterday. Today I rebooted to finish an iTunes update, and got a black screen with "Can't find OS, ctrl-alt-delete to restart." Aargh.
My C drive is a Samsung SSD. When I try to recover by booting the Win 7 installation CD, the recovery tools see the Windows installation on the E drive (used to be my C drive...) but don't see the SSD at all - so I can't repair the C drive Windows 7 installation. The SSD shows up in the BIOS boot menu, though.
Any hints on how to get the recovery tools to see the C drive Windows installation? Or a workaround?